Best and Worst Celebrity Hair Color Photos

From subtle to chunky highlights, see how stars like Rihanna work streaks

Highlights are a perfect way to add dimension to your hair, making it appear full and vibrant. When done right, hair looks like it's been kissed by the sun. When done wrong, highlights can give hair a striped, skunk-like look -- not pretty. Check out our fave and least fave celebrity hair highlights, then offer up your opinion: Did they go too far or are their streaks just right?

Rachel McAdams is beautiful blonde or brunette, but I definitely think the pink streaks do not do her any justice. Glad to see she ditched the short layers and pink for the longer, sleeker style. It's much more attractive.